Sample handling technique

Details Sample handling technique Sample handling technique

1988-11-29

1991-08-06

Hart, Charles

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Sample mechanical transport means in or for automated...

250288, 422 81, 436171, G01N 2100

Patent

active

050376110

ABSTRACT:
To inject samples into a mass spectrometer, one end of a capillary tube is affixed directly to the vacuum chamber of the mass spectrometer or to a mass spectrometer interface to bring gaseous samples into close proximity to the mass spectrometer ionizing means, and the other end is in close proximity to the surface of a tape. The tape is in a cassette and a probe is inserted through the cassette frame between the cassette reels and draws the tape to the end of a capillary tube. Regions of tape with samples adsorbed to tape surface are transported rapidly from a low temperature region for a high temperature region which includes the entrance end of the capillary tube. Sample vaporizes from the tape surface and is carried into the capillary tube by a carrier gas. The tape position is indicated by bar codes on the tape that control tape movement.

REFERENCES:
patent: 3318149 (1967-05-01), Varadi
patent: 4594506 (1986-06-01), Ghaderi
patent: 4740298 (1988-04-01), Anderson et al.
patent: 4879458 (1989-11-01), Brunfeldt et al.
patent: 4908512 (1990-03-01), Caprioli et al.

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